A gas boiler, fuelled with natural gas, oil, LPG or propane (etc), is the most common kind of appliance used for central heating in Shrewsbury and throughout the United Kingdom. It heats water which flows through pipes or a radiator, and it is used for hot water in the home as well as for a central heating system. It is also used for radiant floor heating systems. An annual boiler inspection and maintenance check by a registered “Gas Safe” gas boiler service heating engineer is essential for safety and comply with UK Law.
The Engineer will make sure that the heating system is installed according to regulations during the annual central heating and boiler inspection, that it is safe and it is working efficiently according to the manufacturers’ instructions. If this is done properly every year, gas boiler breakdowns and the resulting emergency repair work can often be avoided.
Shrewsbury High Energy Efficiency Combi Boiler Inspection – A Number of Things You Will Want to Consider
Combi boilers have a lot of advantages over conventional boilers, but also a few small drawbacks. This article will open your eyes to the things you should consider when purchasing a cheaper model. There are many models of combi boilers available in the market, and like in every other product, the price usually matches the quality and determines the results (you get what you pay for).
1) Possible scaling of the DHW heat exchanger
If the water company in your area, supplies you with hard water, chances are that your DHW heat exchanger will scale with time. In that scenario, you will have two choices; either replace it with an original piece from the manufacturer (which won't be cheap), or replace the whole boiler. Of course this problem can occur with any conventional tank as well, as this is one of the effects of hard waters. The latest and more expensive combi boilers are already designed to reduce scaling as much as possible. Another thing you could do is run softened water through it, but that would definitely invalidate your warranty.
2) No option of electric immersion heater
With a conventional water storage tank, if for some reason the boiler fails, you have the option of using an emergency electric immersion heater. But the combi boiler is tankless and this option would not be valid.
3)Possible incompatibility between gas pipes
You may need to upgrade the gas supply pipe, because the diameter may not comply with the regulations for installing combi boilers.
4)Good showers, slower baths
Although one of the combis' strengths is to be able to deliver high pressurized water in both your hot and cold taps, a cheaper model may have a modest flow rate of hot water. That is no problem if you are a shower person, because it will supply just what you need to take a nice hot shower. Nevertheless, it maybe a little slower for your bathtub to fill up.
5)It does not deliver instant hot water to all taps
If the boiler is far away from the tap you are using, it may take a few minutes for the hot water to come through, as it has to travel through many meters of cold water filled pipes. This is not a problem when filling up a tub or taking a shower, but if you just want instant hot water to wash your hands or fill up a basin, it may be irritating to have to wait and see an amount of cold water being wasted down the drain.
Things to Look Out For in a Gas Boiler Service
A gas boiler, fuelled with natural gas or propane, is one kind of appliance used for central heating. It heats water which flows through pipes or a radiator, and it is used for hot water in the home as well as for a central heating system. It is also used for radiant floor heating systems. An annual maintenance check by a registered gas boiler service heating engineer is very important for safety and efficiency. They will make sure that the heating system is installed according to regulations, that it is safe and it is working efficiently according to the manufacturers' instructions. If this is done properly every year, gas boiler repair work can be avoided.
In order for the boiler to be serviced properly it needs to be working.
Gas boiler service varies according to the type of boiler, but there are some things that should be checked on in any boiler. This will be done by the engineer according to the instructions in the manual which came with the boiler when it was installed. The main things that should be checked are:
1. check for leaks
2. check the gas pressure
3. check if it is producing carbon monoxide
4. check if it is functioning properly
5. check the overall condition
6. check the pump and valves
7. check for enough ventilation
8. check the safety and cleanliness of the flue
Old cast iron boilers that have an open flue will need to be dismantled and cleaned which is not needed for modern boilers. They have a systems performance test. Depending on the condition and type of boiler it can take anywhere from a half an hour to an hour and a half for a complete gas boiler service. Contractors are often willing to do servicing, especially during the summer, for greatly reduced prices, hoping that you will call them later if you need any gas boiler repair work.
If there is concern that a boiler is not working properly, and gas service is required, there are some things that can be checked:
1. Make sure there is enough water pressure by looking on the pressure gauge. It should show 1.0-1.5 bar.
2. Make sure the pilot light is lit.
3. If the pilot light is lit but there is no hot water, or it is unusually noisy, it may be a gas valve or pump failure in which case an engineer needs to be called.
4. If there is hot water but no central heating, the diverter valve may not be functioning.
5. If the top of the radiator is cold it may need to be "bled". There is a bleed valve near the top that will release air. If it is cold on the bottom there is most likely sludge or rust blocking the radiator.
If there is no heat at all check the gas and make sure it is turned on as well as the thermostats and control switches. Make sure the pump is running and make sure the pilot light is lit. Many of these minor gas boiler repairs can be done at home with the use of the manufacturers' manual. If you can identify a problem, but are not sure how to fix it even with a manual, call a heating engineer for routine gas boiler service.
For Shrewsbury Systems We Normally Suggest Purchasing From The Our Recommended Combi Boiler Range
Worcester-Bosch are undoubtedly one of the leading manufacturers of gas fired boilers in the UK, with a rich history spanning 50 years of production, Worcester are one the household names to look for when purchasing a new gas boiler for your home.
In August 2012, Worcester announced the launch (although to many say it was a revision) of the new Greenstar CDi Classic Combination Boiler Range.
A total of 8 models of boilers have been launched, they are:
Greenstar 29Cdi Classic - (Formerly Greenstar 27Cdi)
Greenstar 34Cdi Classic - (Formerly Greenstar 30Cdi)
Greenstar 38Cdi Classic- (Formerly Greenstar 37Cdi)
Greenstar 42Cdi Classic - (Formerly Greenstar 42Cdi)
All models are available in either standard natural gas, or in an LPG option for those in remote locations.
So What's The Difference?
Most notably, the Greenstar Classic range have had a whole host of internal upgrades and improvements with the clever introduction of a more energy efficient standby mode. With consumers continually looking at ways to reduce their energy consumption within the home, Worcester have managed to reduce the standby electricity output of the CDi boilers from 9W to just 3.5W in the new CDi Classic Boilers.
This enables customers to benefit from a more energy efficient source of heating and hot water, which will have a positive impact on electricity bills. Therefore keeping a high standard in energy efficiency and maintaining the SEBUK A-Rated performance values in excess of 90% efficient.
The overall outputs of 27kW, 30kW and 37kW within the CDi range have been upgraded to 29kW, 34kW and 38kW in a move which substantially improves performance in flow rates, giving better hot water service to bathrooms and kitchens.
In addition to this increase in performance and reduction in energy consumption, the everyday operation has not been overlooked in this overhaul. The introduction of a magnetic flap access panel has greatly improved upon the Greenstar CDi's original push and click mechanism, a feature which often failed with many years of use.
With peace of mind and reduced costs on everyone's minds, Worcester haven't scrimped on the warranty either, with a current promotion of a full 5 Year parts and labour warranty on the boiler and a huge 10 Year Warranty on the primary heat exchanger.
Some features and benefits at a glance:
- Best boiler efficiency rating SEDBUK band A
- Fully condensing in both central heating and domestic hot water modes
- Keep hot facility - instantly available hot water
- Extremely small standby electrical output of 3.5W - energy efficient
- Wall mounting frame allows pipework to be hidden from view
- Vertical pre-piping kit
- Below boiler pipe cover
- Earth bonding strip
- Low NOx and CO2 emissions - environmentally friendly
- 5 year boiler guarantee until 31st December 2012, terms and conditions apply (standard guarantee: 2 years)
- 10 year guarantee on primary heat exchanger
- 5 year anti-scale guarantee on domestic hot water heat exchanger
- Hot water and central heating temperatures can be controlled
- Multi-directional fluing means boiler can be sited in a wider variety of places
- Mechanical, digital and new generation intelligent controls all compatible
- Heat load and flow generated precisely to meet the heating system's requirements using a modulating pump
With the introduction of the new Greenstar Classic Combination boilers in 2012, Worcester's continued program of improvements ensures they remain the UK's favoured choice for boiler manufacturer, there is no better time to purchase a combi boiler to reduce bills and save energy.